55154611564 has 24 divisors (see below), whose sum is σ = 103961541488. Its totient is φ = 25451979840.

The previous prime is 55154611483. The next prime is 55154611579. The reversal of 55154611564 is 46511645155.

It is a self number, because there is not a number n which added to its sum of digits gives 55154611564.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265219 + ... + 425029.

Almost surely, 2^55154611564 is an apocalyptic number.

It is an amenable number.

55154611564 is a deficient number, since it is larger than the sum of its proper divisors (48806929924).

55154611564 is a wasteful number, since it uses less digits than its factorization.

55154611564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166465 (or 166463 counting only the distinct ones).

The product of its digits is 360000, while the sum is 43.

The spelling of 55154611564 in words is "fifty-five billion, one hundred fifty-four million, six hundred eleven thousand, five hundred sixty-four".